RIO GRANDE VALLEY:
According to popular myth, temperatures are typically cold during the winter time. The past two or three days in the Rio Grande Valley have been no exception. 57 was the afternoon high in Brownsville; a high of 49 was reached in Harlingen. Light drizzle has been falling throughout the day over the RGV. A warm up is on the way, as high pressure over the Mississippi Valley continues pushing east and thus directing our winds out of the southeast and advecting warm temperatures from the south. For tonight, patchy drizzle will continue falling under overcast skies. Lows will be in the 40s with winds out of the northwest at 5-10 mph.
(1/14): Tomorrow, the winds will start out of the northeast and then shift out of the east, and eventually out of the southeast at 5-10 mph. This will allow temperatures to be warmer than the past few days. Afternoon highs will be in the mid 60s under cloudy skies. Friday night will be cloudy, as well, with lows in the lower-to-mid 50s with calm winds.
(1/15): An increased chance (60%) of showers and thunderstorms for Saturday and Saturday evening. An upper lever shortwave trough over NM is scheduled to dig towards the RGV, sparking showers and thunderstorms. Afternoon highs will be in the upper 60s/lower 70s with light southeast winds. Saturday night’s lows will be in the mid 50s, with rain and possibly a thunderstorm (70%).
(1/16): Sunday looks to be pleasant. There will still be a possibility of a shower or thunderstorm early, until the shortwave trough passes. After the shortwave trough passes, rain chances will decrease and the clouds will be scattered. Afternoon highs will generally be in the lower-to-mid 70s with winds out of the south and southwest at 5-10 mph.
Forecast For Edinburg, TX:
(1/14): 64/40…Cloudy…NW winds shifting to SE at 10 mph.
(1/15): 68/53…Cloudy…60%-70% rain/storms…Winds SE at 5 mph
(1/16): 75/56…Cloudy to Partly Cloudy..Rain early…Winds WSW at 5-10 mph
REST OF THE NATION:
The Northeast winter storm is finally over, but not after some areas picked up 30″+ of snow from it.
Light snow is currently falling over northern UT and southern ID due to an upper-level shortwave trough, creating divergence at 300mb. This same shortwave trough will break away from the synoptic flow and dig towards the RGV Saturday.
Snow is also falling in parts of MN, WI and IL due to a mid-level trough that will be sliding east tonight and into tomorrow.
Onshore flow from the Pacific, due to a surface low northwest of WA, along with upper-level support, is bringing light showers for parts of WA and OR. Computer models continue bringing moisture from the Pacific, affecting the Pacific Northwest with rain and snow over the next few days.